757 citations · 1.8k across the 33 of their papers we have counts for
29 papers
XMM-Newton Observations of Two Archival X-ray Weak Type 1 Quasars: Obscuration Induced X-ray Weakness and Variability
Zijian Zhang, Bin Luo, W. N. Brandt +6
We report \hbox{XMM-Newton} observations of two examples of an unclassified type of \hbox{X-ray} weak quasars from the \citet{2020ApJ...900..141P} survey of \hbox{X-ray} weak quasa…
Evidence for quasar fast outflows being accelerated at the scale of tens of parsecs
Zhicheng He, Guilin Liu, Tinggui Wang +14
Quasar outflows may play a crucial role in regulating the host galaxy, although the spatial scale of quasar outflows remain a major enigma, with their acceleration mechanism poorly…
A Rapid and Large-Amplitude X-ray Dimming Event in a z ~ 2.6 Radio-Quiet Quasar
Hezhen Liu, B. Luo, W. N. Brandt +4
We report a dramatic fast X-ray dimming event in a z=2.627 radio-quiet type 1 quasar, which has an estimated supermassive black hole (SMBH) mass of . In t…
A quasar shedding its dust cocoon at redshift 2
Weimin Yi, W. N. Brandt, Q. Ni +12
We present the first near-IR spectroscopy and joint analyses of multi-wavelength observations for SDSS J082747.14+425241.1, a dust-reddened, weak broad emission-line quasar (WLQ) u…
Connecting Low- and High-Redshift Weak Emission-Line Quasars via HST Spectroscopy of Ly Emission
Jeremiah D. Paul, Richard M. Plotkin, Ohad Shemmer +10
We present ultraviolet spectroscopy covering the Ly + N V complex of six candidate low-redshift () weak emission-line quasars (WLQs) based on observations with th…
Sensitive Chandra coverage of a representative sample of weak-line quasars: revealing the full range of X-ray properties
Q. Ni, W. N. Brandt, B. Luo +8
We present deeper Chandra observations for weak-line quasars (WLQs) in a representative sample that previously had limited X-ray constraints, and perform X-ray photometric analyses…